#include <stdio.h>

int main() {
    unsigned char c = -1;
    printf("%d\n", (unsigned int)c);

    if (c == (unsigned char)-1) printf("=\n");
    else printf("!=\n");

    if (c > -1) {
        printf("c > -1\n");
    }
    else if (c < -1){
        printf("c < -1\n");
    }

    return 0;
}
